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72265LA15TFGI8 Datasheet(PDF) 6 Page - Integrated Device Technology |
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72265LA15TFGI8 Datasheet(HTML) 6 Page - Integrated Device Technology |
6 / 27 page 6 IDT72255LA/72265LA CMOS SuperSync FIFO™ 8,192 x 18 and 16,384 x 18 COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES 4670 drw04 1.1K 30pF* 680 Ω 5V D.U.T. * Includes jig and scope capacitances. Input Pulse Levels GND to 3.0V Input Rise/Fall Times 3ns Input Timing Reference Levels 1.5V Output Reference Levels 1.5V Output Load See Figure 2 AC TEST CONDITIONS NOTES: 1. All AC timings apply to both Standard IDT mode and First Word Fall Through mode. 2. Industrial temperature range product for 15ns and 20ns speed grades are available as a standard device. 3. Pulse widths less than minimum values are not allowed. 4. Values guaranteed by design, not currently tested. Figure 2. Output Load Commercial Commercial & Industrial(2) IDT72255LA10 IDT72255LA15 IDT72255LA20 IDT72265LA10 IDT72265LA15 IDT72265LA20 Symbol Parameter Min. Max. Min. Max. Min. Max. Unit fS Clock Cycle Frequency — 100 — 66.7 — 50 MHz tA DataAccessTime 2 8 2 10 2 12 ns tCLK Clock Cycle Time 10 — 15 — 20 — ns tCLKH Clock High Time 4.5 — 6 — 8 — ns tCLKL Clock Low Time 4.5 — 6 — 8 — ns tDS DataSetupTime 3 — 4 — 5 — ns tDH DataHoldTime 0 — 1 — 1 — ns tENS EnableSetupTime 3 — 4 — 5 — ns tENH EnableHoldTime 0 — 1 — 1 — ns tLDS LoadSetupTime 3 — 4 — 5 — ns tLDH LoadHoldTime 0 — 1 — 1 — ns tRS ResetPulseWidth(3) 10 — 15 — 20 — ns tRSS ResetSetupTime 10 — 15 — 20 — ns tRSR Reset Recovery Time 10 — 15 — 20 — ns tRSF ResettoFlagandOutputTime — 10 — 15 — 20 ns tFWFT ModeSelectTime 0 — 0 — 0 — ns tRTS RetransmitSetupTime 3 — 4 — 5 — ns tOLZ Output Enable to Output in Low Z(4) 0 — 0— 0— ns tOE OutputEnabletoOutputValid 2 6 3 8 3 10 ns tOHZ Output Enable to Output in High Z(4) 2 638 3 10 ns tWFF Write Clock to FF or IR —8 — 10 — 12 ns tREF Read Clock to EF or OR —8 — 10 — 12 ns tPAF Write Clock to PAF —8 — 10 — 12 ns tPAE Read Clock to PAE —8 — 10 — 12 ns tHF Clock to HF —16 — 20 — 22 ns tSKEW1 Skew time between RCLK and WCLK for FF/IR 5— 6 — 10 — ns tSKEW2 Skew time between RCLK and WCLK for PAE and PAF 12 — 15 — 20 — ns tSKEW3 Skew time between RCLK and WCLK for EF/OR 60 — 60 — 60 — ns tSKEW4 Skew time between RCLK and WCLK for PAE and PAF 15 — 17 — 25 — ns forRe-transmitoperation AC ELECTRICAL CHARACTERISTICS(1) (Commercial: VCC = 5V ± 10%, TA = 0 °C to +70°C; Industrial: VCC = 5V ± 10%, TA = –40°C to +85°C) |
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